\documentclass{ctexrep}%Chinese report
\usepackage{tabularray}%tabular

\begin{document}
\begin{tblr}{
        cells={c,m},
        hlines,
        vlines,
    }
    AAAAAAA & BBBBBBB \\
    c       & {f      \\g} \\ %multirows
    d       & h       \\
    e       & {i      \\j}    %multirows
\end{tblr}
\end{document}
